Motorcycle Repair: 1988 FXRS STARTER PROBLEM, compression piston, jackshaft

Question
QUESTION: I Have a 1988 Harley FXRS. It has 10 to 1 compression with no releases on it. It also has a baker 6speed trans cluster in stock 5 speed case.I also have a Barnett Scorpion clutch.I had my inner primary powder coated,but grounded off coating where starter mounts. It has new battery, and starter motor O.E.M. replacement.Aswell as a new solenoid.I have had the handle bars rewired and all new switches installed. the ignition switch has been replaced.When I hit the starter button the jackshaft comes out,and the engine starts, but the starter will not disengage.Do you have any thoughts on what my problem maybe. Thank you in advance Suzanne

ANSWER: When you say the jackshaft does not disengage, is the solenoid sticking as well?
Mike

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QUESTION: How can i tell if the Solenoid is sticking. The jackshaft doesn't leave the ring gear. And the starter keeps cranking. until I disconnect the battery.Thank You Suzanne

ANSWER: If the starter is still cranking then the solenoid is sticking. When you changed the solenoid did you change the spring as well?
Mike

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QUESTION: Yes I did change the spring,aswell as stretched it after it didn't make any difference.Do they make a heavy duty solenoid kit? Don't know what to do......Suzanne

Answer
Since you are running a high compression piston, the stock starter isnt handling it. Its taking so much current to turn the motor over that is burning the solenoid and making it stick. First, you need to make sure you hve a really good ground. A weak ground wont work. Next, you can go a couple of different routes. You can put in a high output battery, like a big bore, or you can put in a higher amp starter. I would go with the high amp starter.
Good luck and happy riding
Mike